Allow for configuration of parameters globally

Description

It'd be nice if you could configure some parts like Cipher Priority, Certificate Chain File (yeah, that one makes sense), maybe even default Certificate (if you've got a wildcard which can be used as fallback), GnuTLS-based Auth Params, ... in the global Apache Configuration and get those values as a default if they aren't present in the actual VHost configuration.
Additional Information Take this sample configuration: